﻿// FluentViewModel (http://fluentviewmodel.codeplex.com/)
//
// Copyright © 2010 Kialco Group 
//
// The contents of this file are subject to the Mozilla Public
// License Version 1.1 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.mozilla.org/MPL/
// 
// Software distributed under the License is distributed on an 
// "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
// implied. See the License for the specific language governing
// rights and limitations under the License.

using System.Diagnostics;

namespace FluentViewModel
{
    /// <summary>
    /// Service configuration.
    /// </summary>
    /// <typeparam name="TService">The type of the service.</typeparam>
    public abstract class ConfigureService<TService> : IConfigurationProvider
    {
        private readonly ServiceConfiguration configuration;
        private bool nextBool;

        protected ConfigureService()
        {
            configuration = new ServiceConfiguration(typeof(TService));
            nextBool = true;
        }

        /// <summary>
        /// Inverts the next boolean.
        /// </summary>
        [DebuggerBrowsable(DebuggerBrowsableState.Never)]
        public ConfigureService<TService> Not
        {
            get
            {
                nextBool = !nextBool;
                return this;
            }
        }

        /// <summary>
        /// Configures the transience of the service.
        /// </summary>
        public void Transient()
        {
            configuration.Transient = nextBool;
            nextBool = true;
        }

        /// <summary>
        /// Configures the service implementation type.
        /// </summary>
        /// <typeparam name="TServiceImplementation">The type of the service implementation class.</typeparam>
        public void ImplementedBy<TServiceImplementation>()
            where  TServiceImplementation : TService
        {
            configuration.ServiceImplementationType = typeof (TServiceImplementation);
        }

        IConfiguration IConfigurationProvider.GetConfiguration()
        {
            return configuration;
        }
    }
}